Radeon R7 250 vs Radeon R9 380 2G

Intro

Compare all of that to the Radeon R9 380 2G, which features a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 380 2G		8850 points
Radeon R7 250		1836 points
	Difference: 7014 (382%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon R9 380 2G		190 Watts
	Difference: 125 Watts (192%)

Memory Bandwidth

In theory, the Radeon R9 380 2G should be quite a bit faster than the Radeon R7 250 overall. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 108800 (148%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (approximately 353%) faster with regards to AF than the Radeon R7 250. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 84640 (353%)

Pixel Rate

The Radeon R9 380 2G is a lot (approximately 288%) faster with regards to full screen anti-aliasing than the Radeon R7 250, and also should be capable of handling higher screen resolutions better. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 23040 (288%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.